Blue-tailed bee eaters perch on a branch of a tree in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Every year from April to July, Blue-tailed bee eaters flock to Hainan for reproduction.
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Blue-tailed bee eaters perch on a branch of a tree in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)
Blue-tailed bee eaters are seen in Nancheng County, east China's Hainan Province. (Photo: China News Service/Yao Wei)